Diffusion coefficient of gases and vapors
The lookup table diffusion is assumed that the gas (steam) is diffused into the space occupied by another gas (steam);Both bodies are under constant pressure and temperature conditions (the latter is listed in the table).Diffusion coefficients K are given in cm2/ sec.
|
Gases |
t (° C) |
TO |
|
Argon - Helium |
15 |
0.70 |
|
Hydrogen - Nitrogen |
12.5 |
0.73 |
|
- air |
0 |
0.64 |
|
- oxygen |
0 |
0.69 |
|
- oxygen |
14 |
0.77 |
|
- methane |
0 |
0.62 |
|
- carbon monoxide |
0 |
0.64 |
|
- carbon dioxide |
0 |
0.54 |
|
- ethylene |
0 |
0.48 |
|
The air - water vapor |
0 |
0.22 |
|
- Steam |
15 |
0.26 |
|
- oxygen |
0 |
0.18 |
|
- Carbon disulfide |
0 |
0.09 |
|
Oxygen - Nitrogen |
0 |
0.18 |
|
- nitrogen |
12.5 |
0.20 |
|
Carbon monoxide - ethylene |
0 |
0.11 |
|
Carbon dioxide - Hydrogen |
0 |
0.54 |
|
- hydrogen |
18 |
0.60 |
|
- Steam |
18 |
0.15 |
|
Benzene - hydrogen |
0 |
0.29 |
|
- air |
0 |
0.14 |
|
- oxygen |
0 |
0.18 |
|
- methane |
0 |
0.15 |
|
- carbon monoxide |
0 |
0.13 |
|
Water vapor - hydrogen |
0 |
0.69 |
|
- carbon dioxide |
0 |
0.13 |
|
Acetic acid - hydrogen |
0 |
0.40 |
|
- air |
0 |
0.11 |
|
- carbon dioxide |
0 |
0.07 |
|
Carbon disulfide - hydrogen |
0 |
0.36 |
|
- air |
0 |
0.09 |
|
- carbon dioxide |
0 |
0.06 |
|
Amyl alcohol - hydrogen |
0 |
0.23 |
|
- air |
0 |
0.06 |
|
- carbon dioxide |
0 |
0.04 |
|
Methyl alcohol - hydrogen |
0 |
0.50 |
|
- air |
0 |
0.13 |
|
- oxygen |
0 |
0.18 |
|
- methane |
0 |
0.15 |
|
- carbon monoxide |
0 |
0.13 |
|
- carbon dioxide |
0 |
0.08 |
|
Ethyl alcohol - hydrogen |
0 |
0.37 |
|
- air |
0 |
0.10 |
|
- carbon dioxide |
0 |
0.07 |
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